NEN-ISO 422
Photography - Photographic grade p-(methylamino)phenol sulphate - Specification
inactive, Most Current
| Organization: | NEN |
| Publication Date: | 1 April 1979 |
| Status: | inactive |
| ICS Code (Photographic chemicals): | 37.040.30 |
scope:
This International Standard specifies the purity requirements of, and test methods for, photographic grade p-methylaminophenol sulphate. These test methods are generally adequate to ensure satisfactory material but under certain conditions some samples may give high fog. In such cases a photographic test should be made under the conditions of intended use.
Document History
NEN-ISO 422
April 1, 1979
Photography - Photographic grade p-(methylamino)phenol sulphate - Specification
This International Standard specifies the purity requirements of, and test methods for, photographic grade p-methylaminophenol sulphate. These test methods are generally adequate to ensure...